螺旋矩阵python
时间: 2024-06-07 21:04:49 浏览: 17
螺旋矩阵,也称为钟形矩阵或海鸥矩阵,是一个特殊的二维数组布局,其元素是按照螺旋线的形式从中心向外递增。在Python中,你可以手动创建一个螺旋矩阵或者编写算法来生成这样的矩阵。以下是一个简单的例子,展示如何使用Python生成一个给定大小的螺旋矩阵:
```python
def generate_spiral_matrix(n):
matrix = [ * n for _ in range(n)]
top, bottom, left, right = 0, n - 1, 0, n - 1
direction = 0 # 0 - right, 1 - down, 2 - left, 3 - up
def spiral_element(i, j):
return matrix[i][j]
while top <= bottom and left <= right:
if direction == 0: # move right
for _ in range(left, right + 1):
spiral_element(top, _)
top += 1
direction = 1 # move down
elif direction == 1: # move down
for _ in range(top, bottom + 1):
spiral_element(_, right)
right -= 1
direction = 2 # move left
elif direction == 2: # move left
for _ in range(right, left - 1, -1):
spiral_element(bottom, _)
bottom -= 1
direction = 3 # move up
elif direction == 3: # move up
for _ in range(bottom, top - 1, -1):
spiral_element(_, left)
left += 1
direction = 0 # go back to right
return matrix
# 使用示例
n = 5
spiral = generate_spiral_matrix(n)
for row in spiral:
print(row)
```
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